EE STATED HE WAS STANDING ON LOWER BRAME OF CONVEYOR APPROX 3 TO 3 1/2 FEET OFF THE GROUND. HE HAD JUST FINISHED HOOKING UP RIGGING AND JUMPED TO THE GROUND WHEN HE HEARD HIS RIGHT LEG SNAP. E E CLAIMS HE JUST LANDED WITH ALL HIS WEIGHT ON THE RIGHT LEG AND HE ACKNOWLEDGES HE SHOULD HAVE USED A STEP LADDER.